4.7 Dynamic Illustration of a Point Conic and a
Line Conic
[Asked whether he would like to see an
experimental demonstration of conical refraction.] No. I have been teaching it
all my life, and I do not want to have my ideas upset.
—Isaac Todhunter (1820–1910)
Point Conic
To trace the point conic, move the drag point for line
d around P. The above Point Conic with the conic illustrated.To change the point conic,move P, P', and the three points of intersection from a, b, c with a', b' and c'.. Line Conic
To view the line conic, move the drag point on axes
p.
Timothy Peil, 7 February 2013, Created with GeoGebra |
4.7 Conics in the Projective Plane
© Copyright 2013 -
Timothy Peil